Shipping-case.



PATENTBD MAY 14, 1907.

I NOI' N. J; BUSBY.

SHIPPING CASE.

APPLICATION FILED mu. 6, 100a.

UNITED STATES PATENT oFFioE.

NAHUM J UDSON BUSBY, OF BOSTON, MASSACHUSETTS, ASSIG'NOR TO E. A. G. BUSBY, OF CHELSEA, MASSACHUSETTS.

SHIPPING-CASE.

Specification of Letters Patent.

Patented May 14;, 1907.

Application filed January 5,1906. Serial No. 294,774.

To all whom it may concern.-

Be it known that I, NAHUM J UDsoN BUsBY, a citizen of the United States, residing at Boston, in the countyof Suffolk, State of Massachusetts, have invented new and useful Improvements in Shipping-Cases, of which the following is a specification.

My invention relates to shipping cases for transporting through the mails liquid and semi-liquid substances of all kinds, and is designed to provide certain improvements in the construction disclosed in an application for Letters Patent filed by me September 29, 1905, Serial No. 280,660, as will be hereinafter more definitely ointed out and claimed, reference being ha to the accompanying drawing, in which:

Figure 1 is an elevation of my improved case. Fig. 2 is a central vertical sectional view of the same. Fig. 3 is a view similar to Fig. 2, the closing ca thereof being shown unscrewed and partia ly removed. Fig. 4 is a top plan view of the case.

Similar numerals of reference denote corresponding parts in the several views.

In the said drawing the reference numeral 1 denotes the body portion of the shipping case, the same being preferably composed of metal, such as steel, aluminium or the like, and being preferably formed by stamping or drawing the same from a blank to produce a seamless article. Said body is cylindrical in exterior outline, and merges at its lower end into a rounded bottom portion, as shown.

Said body is also exteriorly screw threaded at its upper end at 2, substantially the upper half thereof being formed slightly smaller in exterior diameter at?) and terminating in a shoulder 4, as shown. Said body is also interiorly recessed and screw threaded at 5, the same terminating in an interior shoulder 6. The interior closure for said body 1 is sub stantially the same as that shown and described in my a plication hereinbefore referred to, and emlmdies a disk 7, preferably formed of lead'and resting on the shoulder 6, upon which is. laced a pad 8 of felt or other suitable absor ent material, the two being firmly ressed and'retained in position by a screwt readed closing plug 9 engaging the screw threads of the interior recess 5. Said closing plug 9 is dished or cu ped and radially grooved on its upper an under sides,-

and is also preferablyprovided with suitable l apertures in its upper surface to receive a suitable spanner for screwing or unscrewing the same all as clearly described in my application hereinbefore referred to. The outer closure embodies, as in said application, a pad 10 of felt or other suitable absorbent material, upon which is placed a disk 11 preferably formed of lead. An exterior closing cap 1.2, preferably formed of the same material as the body portion 1., and interiorly enlarged at 13, is screw threaded at the upper end of said interior enlargement at 14 to engage the exterior screw threads 2 of the position, having its lower edge engaging with the exterior shoulder 4 of the body 1, as shown in Figs. 1 and 2. Theinterior enlargement 13 of said cap terminates in a shoulder 15, which, when said cap is screwed into closing position, engages the edge of the disk 11 and firmly presses the latter and its underlying ad 10 in position. Said cap 12-, like the b0 y portion 1, is cylindrical in exterior outline, and merges at its upper end into a rounded top portion, the cap and body, when assembled, resenting a cylindrical exterior configuratlon unbroken by any anles. g In the rounded bottom of the body 1, and in the rounded top of cap 12, I provide a plurality of, say, three apertures 16, adapted to engage, respectively, with similarly shaped pins fixed in the table used for charging 'or discharging the case, and with a suitable spanner, whereby said body will be firmly held against movement while the cap is re moved or replaced.

In order that the interior of my case may be unaffected by the liquid or semi-liquid substances carried thereby, I coat theinterior of the body 1 up to the shoulder 4 with any suitable non-corrosive substance, as shown at 17, and I also similarly coat the disks, 7 and 11, as shown at 18.

By elongating the engaging surface between the body 1 and cap 12, I materially increase the rigidity of the case, and prevent any possibility of the cap being broken off if the case should be dropped, which might occur in my construction hereinbefore referred to, wherein the cap extends but a short distance on the body.

rounding the ends of the case. Further- And this lia, bility ofbreakage is still further lessened by I body 1, said closing cap, when screwed into more, the telescoping of the cap and body renders the same even more liquid-tight,-

thus preventing the slightest possibility of a leak should there occur any coming of the liquid beyond the disk 11. In fact, when a wrapper is pasted on theexterior of the case over the central joint between the body 1 and cap 12, the case becomes substantially air and liquid-tight.

Having thus described my invention, what I claim as new and desire to secure by Let: ters Patent is:

1. A shipping case, embodying a cylindrical body portion having-substantially one half of reduced exterior diameter, and. a closure therefor, said closure slidably telescoping for substantially its full length on said reduced half of said body portion and in screw-threaded engagement therewith when in its closed position.

2. A shipping case, embodying a cylindrical body portion having substantially one half of reduced exterior diameter, and a closure therefor, said closure slidably telescoping for substantially its full length on said reduced half of said body portion and in screw-threaded engagement therewith when in its closed position, the two being of even exteriordiameter and merging into rounded top and bottom portions.

3. A shipping case embodying a cylindrical body portion having substantially its upper half of reduced exterior diameter and exteriorly screw threaded at its upper end, and a cylindrical closure slid'ably telescoping on the reduced upper half of said body portion and interiorly screw threaded near its upper end. to engage the screw threads on the body portion, the two, when assembled, be ing of even exterior diameter.

4. A shipping case embodying a cylindrical body portion having substantially its upper half of reduced exterior diameter, ex teriorly screw threaded at its upper end, and interiorly recessed and screw threaded at its upper end, an interior screw plug engagingsaid interior recess, and an exterior cap slidably telescoping on the reduced upper half of said body portion and. interiorly screw threaded near its upper end to engage the exterior screw threads on said body portion, said body portion and cap, when assembled, being of even exterior diameter.

In testimony whereof, I have hereunto set my hand in the presence of two subscribing witnesses.

NAHUM JUDSON BUSBY. Witnesses:

E. A. G. BUSBY, NAHUM Jonson BUSBY, Jr. 

